Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to 659ae9e6f0524db897bec03a81421277353946e7
  - El Alto Early Drop Version
    
    Change-Id: Ibe756c7e7236599bfcf62b73f06046ff6ffc57e4
    Issue-ID: MUSIC-482
    Signed-off-by: Tschaen, Brendan <ctschaen@att.com>
    
1 file changed